Re^2: boolean IN(); function in perl like

Thx for the info and code. I can see "my $s =shift;" will take the first parameter passed to sun s_in_a; but I am not clear about @_ in "foreach (@_)", does @_ mean the array you pass in? Is it necessary to pass array by reference then dereferrence it? Thx, I appreciate it.

Comment on Re^2: boolean IN(); function in perl like

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Re^3: boolean IN(); function in perl like by Tanktalus (Canon) on Jan 14, 2005 at 19:45 UTC
Call it something like: `s_in_a($scalar, @array_to_check)` - no array references here.	[reply] [d/l]
Re^3: boolean IN(); function in perl like by renz (Scribe) on Jan 14, 2005 at 21:40 UTC
You're correct about @_. From the Perl Predefined Variables page: "Within a subroutine, the array @_ contains the parameters passed to that subroutine." /renz.	[reply]